Save language chosen by user, Android

Question

How can I change default string.xml? I can change my app to five different languages, but whenever I close the app and reopen it. It goes back to default English.

Is

Answer 1

You can write to, then read from SharedPreferences to manage the user's chosen language

To save:

SharedPreferences shp = getSharedPreferences(
        "com.example.yourapp.PREFERENCES",Context.MODE_PRIVATE);
SharedPreferences.Editor editor = shp.edit();
editor.putString("USER_LANGUAGE", language);
editor.commit();

To load:

SharedPreferences shp = getSharedPreferences(
        "com.example.yourapp.PREFERENCES",Context.MODE_PRIVATE);
String language = shp.getString("USER_LANGUAGE","en");

When you load the language, modify the locale to use it

Locale locale = new Locale(language);  
Locale.setDefault(locale); 
Configuration config = new Configuration(); 
config.locale = locale; 
getResources().updateConfiguration(config, getResources().getDisplayMetrics());